A high-resolution study of the 20Ne(3He, t)20Na reaction and the 19Ne(p, γ)20Na reaction rate

Abstract A high-precision measurement of the 20 Ne( 3 He,t) 20 Na reaction has been made using implanted 20 Ne transmission targets to obtain pertinent information on the low-energy resonances in the 19 Ne(p, γ) 20 Na reaction. Resonance energies (447±5, 658±5, 787±5, and 857±5 keV) and upper limits on total intrinsic widths ( 20 Na. The stellar 19 Ne(p, γ) 20 Na reaction rate is calculated for temperatures between 1×10 8 and 1×10 9 K. When combined with a recent study of the 15 O(α, γ) 19 Ne reaction, a new estimate is made of the conditions required for breakout from the Hot CNO cycle to the rapid proton capture process.